Add core build

[wltsmrz]

Add a "core" browser build of ripple-lib which has a subset of features and smaller file size

Restrictions

• No transaction submission
• No orderbook tracking
• No Account class
• No SerializedObject class. The only implication for this build is that you won't be able to request binary account_tx

Using an unavailable class (e.g. calling remote#createTransaction) will throw an error such as Error: Class is unavailable in this build: Transaction

Results

$ du -k build/*
172 build/ripple-0.9.2-rc5-core.js
856 build/ripple-0.9.2-rc5-debug.js
832 build/ripple-0.9.2-rc5.js
328 build/ripple-0.9.2-rc5-min.js
132 build/sjcl.js

[coveralls]

Coverage decreased (-0.02%) when pulling 8f17873 on core-build into 261b72d on develop.

[wltsmrz]

@justmoon

[geertweening]

@wltsmrz can you add some documentation around the purpose of this build and for what cases it should be used. I would also like to understand better why orderbook, account, transaction, serializedobject are excluded, but other parts of the library are still included. Such as vaultclient, transactionmanager, transactionqueue.

[wltsmrz]

I'm not sure where documentation should be added. I'll add a release note when this is merged

As the entry point is remote.js and account.js is disabled, none of the classes you mentioned (vaultclient.js transactionmanager.js transactionqueue.js) will be included

[geertweening]

Can you add a 'build' paragraph to the README? This would fit nicely in there.

[justmoon]

Agree on adding docs. Implementation-wise looking good!

[coveralls]

Coverage decreased (-0.05%) when pulling 5a0821e on core-build into 261b72d on develop.

[coveralls]

Coverage decreased (-0.02%) when pulling 3650858 on core-build into 3ee7998 on develop.